Home / 187,215.10-280,822.65-163,887.10

Finding the Fourth Proportional to 187,215.10, 280,822.65 and 163,887.10

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Solution

The fourth proportional to 187,215.10, 280,822.65 and 163,887.10 is: 245,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,215.10 : 280,822.65 = 163,887.10 : x
  2. Step 2: Convert to fraction form
    187,215.10/280,822.65 = 163,887.10/x
  3. Step 3: Cross multiply
    187,215.10x = 280,822.65 × 163,887.10
  4. Step 4: Simplify right side
    187,215.10x = 46,023,209,722.82
  5. Step 5: Solve for x
    x = 46,023,209,722.82/187,215.10
  6. Step 6: Final answer
    x = 245,830.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.